I think that, if you have an abundance of calcium in your diet, but you are lacking iron, that you might be able to exchange some of the calcium rich foods for foods that are higher in iron. That way, you will be getting the iron that you need and still getting your calcium while staying within your calorie range.
Here's a list of iron rich foods: www.ars.usda.gov/SP2UserFiles/Place/123545
Supposedly, cooking in cast iron cookware will also significantly raise the iron levels in some foods.
I would advise you to not take iron supplements (aside from whatever is in a daily multivitamin) without a doctor's supervision. It's pretty easy to get too much iron this way and it can lead to some pretty serious health problems. If you feel like you've been lacking in dietary iron for a long time now, you might want to discuss this with your doctor. He/she can run a blood test to see if you're anemic and, if you are and they suspect iron deficiency anemia, they can run further blood tests to see if your body's iron stores are low.
So far as eating a diet rich in calcium, unless you have a medical condition that requires you to limit your calcium intake, I doubt that you are going to be able to consume so much calcium in your food alone (without taking a bunch of calcium supplements) that it will cause you a problem. Your doctor is probably the one to give you the best information about what he/she thinks your particular calcium intake should be. Unfortunately, your doctor cannot run a blood test to see if your dietary calcium is too high or too low. The level of calcium in your blood is very closely controlled and your body maintains your blood calcium level within a relatively narrow range of values even when your diet has a lot of calcium or is lacking in calcium. The vast, vast majority of calcium in your body is stored in your bones and your body will take calcium from your bones, when needed, to maintain your blood calcium level at its proper level. When you give your body extra calcium, it is usually either stored in your bones or excreted (urine/stool) and it does not show up as a high blood calcium level.
Edited by: LOVE4KITTIES at: 10/4/2011 (17:59)